Back to school: our models can also be used for teaching. The students of the Lycée français de Zurich (17 yrs old, Science Major) had lectures on the challenges and opportunities of Oil Palm cultivation in the tropics... before playing the role of small growers and the agribusiness in Cameroon. Competition, aggressive selling techniques, environmental lobbying, and lots of fun.In the final debriefing, students expressed they were satisfied with their individual outcomes (more money in their bank account), yet dissatisfied with the collective result (due to deforestation and the tensions felt across the supply chain). They highlighted trust as a major element to consider in their strategies.There is no better way of teaching the challenges of sustainability!